Howards Racing Components 98214 Single Valve Springs - 1.250 Valve Spring, Singl on 2040-parts.com

Mercedes E 63 AMG S: UK price from £83,740

The E63 AMG S is the extreme version of what is already an extreme car in the E63, with a power boost that takes it from 549bhp to 577bhp – and throws in an extra 60lb/ft of torque for good measure too – and promises real extreme performance. The problem is, getting that power down to the road. In left hand drive markets that’s solved by simply offering the Mercedes 4WD option – 4MATIC – which does a much better job of transferring power to the road than the regular RWD layout.

Chrysler adds sporty S trim features to the 200 sedan and convertible

Chrysler is looking to add a little sport to the Chrysler 200 sedan and convertible with the addition of the S trim line. Don't expect anything too extreme--the S package consists of some interior and exterior upgrades, and a few suspension revisions. Changes include unique 18-inch wheels with painted black pockets, a grille with an S model-only winged badge and black background headlights.

One Lap of the Web: French car weirdness and Sebring domination

-- In this episode of "How to Perform Simple Tasks to and Around Your French City Car," we learn to refill the windshield washer fluid in the Renault Twingo. First, you pull a cover hidden in the thin front grille against one of the headlights. It dangles downward like a weak loogie.